In today’s interconnected energy world, it’s not easy for islands and remote communities, cut off from the ready energy supply of big grids, pipelines and superhighways. Witness the international drama last winter when Nome, Alaska became ice-locked and only secured fuel because of an elaborate sea effort by Russia and the US.

Dependent on the outside world for fossil fuels, places like Nome face not only shortages, but also sky-high energy prices. Some residents of Nome spend 45% of their income on energy. Similarly, Hawaiians pay more than twice as much for electricity as Californians.